 She doesn't have a duty to rip open walls to see if there is or isn't. So it's the termite inspection I would go after, the termite inspector, by not telling you. You have detrimentally relied on both the owner and the inspection. You have relied on them to your detriment. I think there is a small claim suit. Hopefully it's under $10,000 so you can do it yourself in court. And you sue them both.